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When the coal gangue content exceeded 10%, the soil nutrient status was obviously improved. In the treatment group where the topsoil substitute material was fly ash, the chemical properties of reconstructed soil tended to deteriorate. In the treatment group where the topsoil substitute material was rock and soil stripping material, when the content of rock and soil stripping material exceeded 20%, the chemical properties of reconstructed soil were mostly better than those of the control scheme. The study of the different proportions of co

Causes of Truck Crash Accidents While the driver of the truck is typically at fault for the truck crash, there are other factors which could lead to an accident. Driver fatigue, impaired driving and trucks that carry dangerous cargo are among the most frequent causes of truck accidents. The makers of these products could also be held responsible for any damages. If you have suffered injuries and/or injuries, you must seek medical assistance as soon as you can. Document the accident and exchange information with the other parties. Request a co